export type AgentConnectErrorStatus = 400 | 403 | 404 | 502 | 503 | 504;
export interface AgentConnectErrorResponse {
    status: AgentConnectErrorStatus;
    body: Record<string, unknown>;
}
/**
 * Preserve the `/api/connect` error contract in one route-local policy.
 *
 * Agent error codes are a structural boundary rather than an `instanceof`
 * contract: callers and tests may attach them to ordinary Error objects.
 * Unknown or missing codes intentionally retain the route's legacy 400.
 */
export declare function classifyAgentConnectError(error: unknown): AgentConnectErrorResponse;
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